Sounds like you might have some file corruption issues—but hard to say. You should email a description of your issue and attach your Team Project (.rpprj) file to email@example.com —they are usually very responsive.
If you want other users on this forum to try to help, you’ll need to upload an .rp file (you can export that from your team project file.) This isn’t likely to help though, if you have a corrupt file.
Something else you can try is to create a new .rpprj file by joining the team project again and using a different local file location.